<?php
/**
 *Copyright (c) <2017> <copyright taodingfei>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

namespace Themis\Container\Resolver;

use Themis\Contracts\Container\ContainerInterface;
use Themis\Contracts\Container\Resolver\ResolverInterface;

/**
 * 用于将类实例化成对象
 *
 * Class ClassResolver
 * @package Themis\Container\Resolver
 */
class ClassResolver implements ResolverInterface
{
    use ImmutableResolverTrait;

    /**
     * @var \ReflectionClass $reflectionClass
     */
    private $reflectionClass;

    /**
     * ClassResolver constructor.
     * @param ContainerInterface $container
     * @param $callable
     */
    public function __construct(ContainerInterface $container, $callable)
    {
        if(!is_string($callable)){
            throw new \InvalidArgumentException();
        }

        $this->container=$container;
        $this->reflectionClass=new \ReflectionClass($callable);
    }

    /**
     * 构建对象
     *
     * @param array $providedParameters
     * @return mixed
     */
    public function build($providedParameters = [])
    {
        $constuctor=$this->reflectionClass->getConstructor();
        $parameters=$constuctor->getParameters();

        $resolvedParameters=array();
        foreach ($parameters as $value){
            if(($type=$value->getType()) instanceof \ReflectionType){
                $resolvedParameters[$value->getName()]=$this->getContainer()->build((string)$type);
            }
        }
        $providedParameters=array_merge($resolvedParameters, $providedParameters);

        return $this->reflectionClass->newInstanceArgs($providedParameters);
    }
}